Repeatedly usable's air column bag

The utility model discloses a repeatedly usable's air column bag belongs to air packing device technical field, including outside membrane, inboard membrane and a plurality of pneumatic valve, its characterized in that: the pneumatic valve includes first seal membrane, second seal membrane and non return seal membrane, the first end of outside membrane links to each other through first violently hot seal line is fixed with the first end of inboard membrane, violently hot seal line is fixed links to each other through the second for the second end of outside membrane and the second end of inboard membrane, link to each other through the hot seal line of neck is fixed between outside membrane, pneumatic valve and the inboard membrane, it aerifys the passageway to be equipped with between outside membrane, inboard membrane, first violently hot seal line and the hot seal line of neck, it is equipped with the air inlet to aerify the passageway left side. The utility model discloses a device can used repeatedly, ha